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Table 3 Detection of the virulence genes of MRSA in accordance with the clinical diagnosis of the associated infection

From: Molecular epidemiology and characteristic of virulence gene of community-acquired and hospital-acquired methicillin-resistant Staphylococcus aureus isolates in Sun Yat-sen Memorial hospital, Guangzhou, Southern China

Virulence gene Number and percentage of the MRSA isolates, n(%) P-value
Infection of the surgical site Infection of skin and soft tissue Pneumonia
(n = 6) (n = 31) (n = 24)
sea 4(66.7) 18(58.1) 15(62.5) 0.422
seb - 11(35.5) 1(4.2) <0.001
sec 1(16.7) 6(19.4) 4(16.7) <0.001
seg 4(66.7) 4(12.3) 3(8.9) <0.001
seh - 1(3.2) 1(4.2) 1.000
sei 3(50.0) 6(19.4) 3(8.9) <0.001
sem 2(33.3) 4(12.3) - <0.001
sen 2(33.3) 2(6.6) - <0.001
seo 2(33.3) 3(9.7) - <0.001
hla 6(100.0) 31(100.0) 23(95.8)  
hlb 6(100.0) 27(87.1) 23(95.8) <0.001
hlg 6(100.0) 30(96.8) 23(95.8) 0.235
tsst-1 - 3(9.7) -  
PVL 3(50.0) 12(38.7) 12(50.0) 0.210
  1. Sea ~ see, seg ~ sej, sem ~ seo, gene encoding staphylococcal enterotoxins; eta and etb, gene encoding exfoliative toxin A and B; hla ~ hlg, gene encoding α-hemolysin ~ γ-hemolysin; tsst-1, gene encoding toxic shock syndrome toxin 1; PVL, gene encoding Panton-Valentine leukocidin
  2. The infection of bone and joint group (n = 1) was not included in statistical analysis